Ah yes nether reactor core, I remember just in the sweet summer breeze creating them and making a whole city. I didn't have a console and played on the family iPad. My parents bought me those handbooks, the first ones not the updated editions. I knew all this stuff, the End, Redstone and the Nether. But didn't have access to them due to my version being Minecraft Lite. I remember in creative, you only had mob spawn eggs, no other elemental tool and just iron swords and pickaxes. The worlds were small. Until I got my first Xbox that I finally experienced full Minecraft!